Many years ago I tryed to make wool dreads. I got the cheapest wool I could get - a not very pretty apple green colour, but it was just to try the technique, so I didn't mind.
I didn't like the process of having my hands in water for so long, but made the green dreads and never looked back.

I found these dreads and didn't want them to go to waste, so I thought that I'd try different dying technique in stead.
So I mixed up some acid powder colour (orange and purple to get brown dye) and knotted the dry dreads up - some I put elastik bands around. And dumped them in the brown dye. Then rinsed, made different knots and ties and did it again with black dye.